An essential application launcher for Android TV that does not replace the default launcher of the device and offers a simple interface to see all installed applications.You can open all installed apks even those that are not native for Android TV.
https://play.google.com/store/apps/details?id=net.easyjoin.applauncher
UPD Here is a screenshot of the app. It is similar to what you see on your phone when you see the list of installed applications. The reason why this screenshot is missing from Play store is because it is forbidden to display in a screenshot icons that are copyrighted.
Play store screenshots show a phone instead of a TV....